September weather forecast
Tanna, Vanuatu

The arrival of September brings subtly warmer days in Tanna, while the rainfall decreases to 125mm (4.92"). This decline in rainfall characterizes the drying trend of the Vanuatu's weather. In line with the season shift, daylight extends into longer periods. The sea warmth and sunlight duration combine favorably for a full day of beach revelry. Though UV levels are higher, adequate precautions should mitigate any adverse effects.

Temperature

Temperatures reach their minimum during July through September, recording an average high-temperature of 24°C (75.2°F).

Rainfall

In September, the rain falls for 15 days. Throughout September, 125mm (4.92") of precipitation is accumulated. Throughout the year, there are 213 rainfall days, and 2435mm (95.87") of precipitation is accumulated.

Sea temperature

August and September, with an average sea temperature of 24°C (75.2°F), are months with the coldest seawater in Tanna.
Note: People sensitive to cold might find swimming in 24°C (75.2°F) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.

Daylight

In Tanna, Vanuatu, the average length of the day in September is 11h and 59min.
On the first day of September in Tanna, Vanuatu, sunrise is at 05:50 and sunset at 17:34. On the last day of the month, sunrise is at 05:24 and sunset at 17:40 +11.

Sunshine

January, February, September through December, with an average of 7h of sunshine, are months with the most sunshine.

UV index

In September, the average daily maximum UV index in Tanna, Vanuatu, is 11. A UV Index reading of 11, and higher, represents an extreme threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 11 turns into the following recommendations:
Employ every crucial safety step. Those with fair skin could experience burns in a matter of minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. For best protection against the Sun, use a sunscreen with no less than 30 SPF. This helps prevent sunburn and negative effects on the immune system. Take note! Sand and water reflections strengthen the Sun's UV exposure.